spring boot 全局校验 spring boot+自定义 AOP 实现全局校验的实例代码

 @NotEmpty(message="手机号不能为空")
   @Size(min=11,max=11,message="手机号码长度不正确")
   @Pattern(regexp=StringUtils.REGEXP_MOBILE,message="手机号格式不正确")
  private String mobile;

@Documented
@Target({ElementType.FIELD,ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface ValidateParam {
  int min() default 0;
  int max() default Integer.MAX_VALUE;
  String message() default "params is not null";
  String regexp();
  Class<?>[] groups() default { };
   Class<? extends Payload>[] payload() default { };
   boolean isNotNull() default true;
}

package com.onecard.primecard.common.aop;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.regex.Pattern;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.stereotype.Component;
import com.jfcf.core.dto.ResultData;
import com.onecard.core.support.util.StringUtils;
import com.onecard.primecard.common.annotation.ValidateParam;
import com.onecard.primecard.common.utils.ResultDataUtil;
/**
 * 全局 切面类(校验参数)
 * 
 * @author Administrator
 *
 */
@Aspect
@Component
public class GobalHandlerAspect {
  private static Logger logger = LoggerFactory.getLogger(GobalHandlerAspect.class);
  @Pointcut("execution(* 包名.controller..*.*(..)) && execution(* 包名.controller..*.*(..))")
  public void checkAspect(){};
  @Before("checkAspect()")
  public void befor(JoinPoint joinPoint) throws Exception{
    //前置统一输出参数
    Object[] args = joinPoint.getArgs();
    if(args != null && args.length>0){
      Object obj = args[0];
      ParameterizedType pt = (ParameterizedType)obj.getClass().getGenericSuperclass();
      Class<?> classzz = (Class<?>) pt.getActualTypeArguments()[0];
      logger.info("【小X卡】-【请求实体入参】："+classzz.newInstance().toString());
    }
  }
  @Around("checkAspect()")
  public Object around(ProceedingJoinPoint joinPoint) throws Throwable{
    //校验参数
    Object[] args = joinPoint.getArgs();
    Object obj = null;
    if(args != null && args.length > 0){
      obj = args[0];
      Class classzz = obj.getClass();
      //没有顺序和秩序的数组
      Field[] fieldArray = classzz.getDeclaredFields();
      ArrayList<Field> fieldList = new ArrayList<Field>(Arrays.asList(fieldArray));
      String res = checkParam(fieldList,obj);
      if(StringUtils.isNotNull(res)){
        return ResultDataUtil.result(ResultData.STATUS_PARAM_ERROR, res);
      }
    }
    return joinPoint.proceed();
  }
  private String checkParam(ArrayList<Field> fieldList, Object obj) throws Exception {
    for(Field field : fieldList){
      ValidateParam validateParam = field.getAnnotation(ValidateParam.class);
      logger.info("【小X卡】获取注解值："+validateParam.isNotNull()+"min="+validateParam.min()+"max="+validateParam.max());
      Method method = obj.getClass().getMethod("get"+getMethodName(field.getName()));
      logger.info("【小X卡】入参实体方法名称："+method.getName());
      if(method != null){
        Object val = method.invoke(obj);
        logger.info("【小x卡】回调方法："+val);
        if(validateParam != null && validateParam.isNotNull() == true){
          if(null == val || "".equals(val) ){
            return field.getName()+"必填参数为空";
          }
        }
        if(validateParam.min()==11 && validateParam.max() == 11){
          if(val.toString().length() != 11){
            return field.getName()+"请输入参数正确的长度";
          }
        }
        if(validateParam.regexp().equals(StringUtils.REGEXP_MOBILE)){
          if(!Pattern.matches(StringUtils.REGEXP_MOBILE, val.toString())){
            return field.getName()+"参数格式错误";
          }
        }
      }
    }
    return null;
  }
   /**
   * 方法首字母大写
   * @param fieldName
   * @return
   */
  private String getMethodName(String fieldName) {
    StringBuffer buffer = new StringBuffer();
    String firstLetter = fieldName.substring(0, 1).toUpperCase();
    return buffer.append(firstLetter).append(fieldName.substring(1, fieldName.length())).toString();
  }    
 }